APA način citiranja

Vincent, W. R., Wiesner, A. M., & Steinke, D. T. (2008). “FREE” PRESCRIPTION DRUG SAMPLES ARE NOT FREE. American Public Health Association.

Čikaški stil citiranja

Vincent, William R., Ann M. Wiesner, i Douglas T. Steinke. “FREE” PRESCRIPTION DRUG SAMPLES ARE NOT FREE. American Public Health Association, 2008.

MLA način citiranja

Vincent, William R., Ann M. Wiesner, i Douglas T. Steinke. “FREE” PRESCRIPTION DRUG SAMPLES ARE NOT FREE. American Public Health Association, 2008.